Pennsylvania Code
Title 52 - PUBLIC UTILITIES
Part I - Public Utility Commission
Subpart C - Fixed Service Utilities
Chapter 53 - TARIFFS FOR NONCOMMON CARRIERS
FORM AND CONTENT OF TARIFFS
Section 53.25 - Standard rules and regulations

A utility shall set forth all rules and regulations which apply generally to all classes of service covered by the tariff, and definitions of technical terms and abbreviations used in the tariff, the meanings of which are not common knowledge and cannot be gathered exactly from the context in which used. Where practicable, special rules applying to a given class of service shall be included in the rate schedule covering the particular class.